Qenching/cooling 304L/316L ss pipe welds
Qenching/cooling 304L/316L ss pipe welds
(OP)
We are GTAW (tig welding) 304L/316L SS piping of various diameters and thicknesses in the 1G rotated position. In the smaller diameters (1" through 8") we would like to speed up the process with an air/water mist cooling of the weld to an interpass temperature of less than 250ºF. followed by cleaning with a ss power brush. The temperature ranges from about 1300ºF immediately following the weld then falls off rapidly depending on diameter and wall thickness. Are we looking for trouble(s)? If so why?
Thanks...
Thanks...





RE: Qenching/cooling 304L/316L ss pipe welds
RE: Qenching/cooling 304L/316L ss pipe welds
RE: Qenching/cooling 304L/316L ss pipe welds
RE: Qenching/cooling 304L/316L ss pipe welds
Thanks for your timely replies.
GR, ...no misting during welding, guess I wasn't too clear.
Bilge, McGuire, over in "Piping and Fluid Mech..." said about the same thing.
Weld 123, ...strange how experience notes the same things. We do delay quenching to avoid just the things you mention... the nasty grey stuff and smearing.
Thanks again, Neweld